Fix not used projection defaults

[Elblinator]

Describe the bug
There are some projection default which do not do what they are supposed to do.
Defaults:

• Ballots
• Current list of speakers
• Motion votes
• Polls
• [Timers]

How to Reproduce

1. create a new projector
2. Activate ONE of the above defaults
3. Navigate to the activated defaults and open projector dialog

These are not activated even thoug h they should be activated given the defaults:

• Ballots, Current list of speakers, Motion votes

"polls" as default activates every poll not just topic polls

• timers cannot be used anymore

Expected behavior

• Ballots, Current list of speakers, Motion votes as defaults should then also activate the projector in the projector dialog

• Polls should be renamed to "Topic polls" and should just activate the topic poll

• Timers as option should be removed

[reiterl]

I have looked into this problem. It needs more work, because the projection defaults are linked in the meeting model and there were a template field before.